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376764 (1999 XS16)
Classification: Mars-crossing Asteroid          SPK-ID: 2376764
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5358472966096178 6.5346e-08  
a 2.940636745018867 2.0625e-08 au
q 1.364904494889601 1.9441e-07 au
i 10.07968544557223 8.1827e-06 deg
node 77.36116991829853 2.2507e-05 deg
peri 99.14623687919591 2.8454e-05 deg
M 23.81255395486919 2.4834e-05 deg
tp 2459078.667270893592
(2020-Aug-17.16727089)		 0.00012642 TDB
period 1841.8764556474
5.04		 1.9378e-05
5.305e-08		 d
yr
n .1954528485861251 2.0563e-09 deg/d
Q 4.516368995148132 3.1677e-08 au
   Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      7467 days (20.44 yr)  
   first obs. used      1999-11-15  
   last obs. used      2020-04-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51181  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 10:33:02  

Additional Information
 Earth MOID = .419607 au 
 Jupiter MOID = .837014 au 
 T_jup = 3.019 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.43   n/a E2021B25  

376764 (1999 XS16)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: Last Updated: 2013-11-20

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[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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